Detachable horseshoe-calk.



W. H. COX. DETAGHABLE HORSESHOE OALK. APPLICATION FILED APR.17, 1909.

. 944,666, Patented Dec.28. 1909.

'on'rran STATES PATENT carton.

WILLIAM H. COX, OF BUCYRUS, OHIO, ASSIGNOR OF ONE-THIRD T JOHN A. MORRISON AND ONE-THIRD TO BUEL W. MOTTER. OF MANSFIELD, OHIO.

DETACHABLE HORSESI-IOE-CALK.

To all whom it may concern.-

Be it known that I, VILLIAM I-I. Cox, a citizen of the United States, residing at Bucyrus, in the county of Crawford and State of Ohio, have invented certain new and use ful Improvements in Detachable Horseshoe-Calks, of which the following is a specification.

This invention relates to improvements in detachable horse shoe calks and the especial object of the improvements which form the subject matter of the application is to pro-- proved toe-calk; Fig. 3 is an end view of the calk shown in Fig. 2; Fig. 4 is a top plan view of the calk shown in Fig. 2; Fig. 5 is a side elevation of one form of heel calk; Fig. 6 is a top plan view of the form shown in Fig. 5; Fig. 7 is a side elevation of a modified form of my improved heel calk; Fig. 8 is a sectional View taken throu h a heel calk and the attached portion of the shoe, and Fig. 9 is an enlarged detail of a I stud-bolt used in my invention.

Referring to the details of the drawing 10 represents a horse-shoe of well-known style having enlarged toe portions to afiord a wide bearing for the toe-calk. The toe-calk consists of a rectangular base-portion or plate 11 from which extends at right angles a vertical portion 15 the edge of which is beveled or sharpened to provide an effective tread for the shoe. Extending along the E base of the vertical wall 15 is a groove 16 which is adapted to receive a locking key 17 preferably made of soft steel so that it may be easily bent. About midway between the ends of the wall 15 a lug 15 projects into the groove 16, said lug serving to defiect outwardly the ends of the keys 17 when they are driven into the groove, and thereby facilitating the final bending of the keys around the heads of the stud-bolts 14 as shown at 18, Fig. 1. The keys are of suffi- Specifieation of Letters Patent.

Application filed. April 1'7, 1909.

Patented Dec. 28, 1909.

Serial No. 490,492.

cient length to embrace at least three sides of the hexagonal heads of the bolts, and, when so bent, serve to effectively lock the latter against- ,unscrewing. The bolts after passing through the slots 13 in the base 11, enter suitably tapped holes in the horseshoe, as shown in Fig. 8. The base 11 is also provided with a threaded stud 12 which is also screwed into a suitable hole in the shoe at a point midway between the slots 13.

As shown in Figs. 5 and 6, the heel calks consist of a base member 19 and a vertical or tread member 22 at right angles to the base. The groove 16 is provided in the member 22, but the opening 13 to receive the bolt 1 1 is round instead of elongated as shown in Fig. 41. The base is also provided with a hole 20 to receive a screw 21 which ii screwed into a suitable hole tapped in the s oe.

As shown in Fig. 7, the base 28 is formed with an extension from which the threaded stud 12 projects, and the vertical wall is between this extension 25 and the hole 13, so that the attaching means are on opposite sides of the wall 22 instead of on the same side as in Figs. 5 and 6.

From the construction described it will be noted that both heel and toe calks have double means for attaching them to the shoes to wit :-the screw studs 12 or 21, and the bolts 14:, and that the latter are effectively locked against rotation so long as the keys are in the seats provided for them. If, however, it is desired to remove the calks for sharpening or renewing, it is only necessary to straighten the keys 17 and drive them out, when the bolts 1 1 can be unscrewed by a suitable wrench. The studs 12 or 21, may be made integral with the plates 11 or 19, if desired, in which case they would be unscrewed by turning the calks of which they form a part about an axis represented by the studs. A wrench and a screw driver are the only tools necessary for the application or removal of my improved calks.

By employing the form of bolt 14: shown in Fig. 9, in which the sides of the head taper inwardly from the top, I may dispense with the groove 16 and drive the wedge be tween the inner face of the wall 22, and the head of said bolt, as shown in Fig. 5, the overhanging side walls of the head serving to prevent the key from falling out.

Having thus described my invention What I claim is g 1. A horse-shoe calk com rising a base member and a tread mem er integrally formed, said base member having a boltreceiving opening therein and said tread member having a groove therein, a bolt adapted to engage said opening, a key seated in said groove and adapted to engage the bolt head, and means on said calk for deflecting the end of the key When seated.

2. A horse-shoe calk comprising a basemember and a tread member integrally formed, said base member having slots therein and said tread member having a groove therein and having a boss on its inner face, bolts adapted to engage said slots and keys seated in said groove and adapted to engage the heads of the bolts and to have their ends deflected by said boss.

3. A horse-shoe calk comprising a basemember having a bolt receiving opening and a tread member having a boss thereon, said base and tread members being integrally formed and at right-angles to each other, means for securing said base member to a shoe, said means comprising a bolt adapted to engage said opening and a key adapted to engage the bolt-head and the boss, substantially in the manner set forth.

In testimony whereof I affix my signature in the presence of two Witnesses.

WILLIAM H. COX.

Witnesses:

LEAH GRAEssLE, H. J. BOGAN. 

